Changeset 536 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Inc/RomVars.inc

Timestamp:

Apr 10, 2013, 6:27:15 PM (11 years ago)

Author:

krille_n_@…

google:author:

krille_n_@hotmail.com

Message:

Changes:

• Added support for the Silicon Valley Computer ADP50L controller (and possibly other IDE controllers from SVC using memory mapped I/O). Please note that this has not been tested in any way since I don't have any of these cards myself (make backups before trying this on drives with important data). Also, *if* it works, make sure it works reliably (stress test the disk system). Some things you should know: 1) Autodetection for this controller has not been added to XTIDECFG, you need to manually select the "SVC ADP50L" controller (and possibly change the BIOS segment address if not using the default of C800h). 2) The memory mapped I/O window is inside the ROM address space of the controller. The XTIDE Universal BIOS currently do not support this so that means you need to use another ROM (for example, an XTIDE or XTCF card or the BOOT ROM of a NIC). This presents another problem, the original ADP50L BIOS needs to be disabled somehow to avoid conflicts. Either pull the ROM chip or disable the BIOS by removing jumper J3. Note, I have no idea if any of this will actually work. It's basically a shot in the dark.

File:

• trunk/XTIDE_Universal_BIOS/Inc/RomVars.inc (modified) (3 diffs)

trunk/XTIDE_Universal_BIOS/Inc/RomVars.inc

@@ -122 +122 @@
 STANDARD_CONTROL_BLOCK_OFFSET           EQU     200h
 XTIDE_CONTROL_BLOCK_OFFSET              EQU     8h
-XTCF_CONTROL_BLOCK_OFFSET               EQU     (XTIDE_CONTROL_BLOCK_OFFSET << 1)
+XTCF_CONTROL_BLOCK_OFFSET               EQU     10h
+ADP50L_CONTROL_BLOCK_OFFSET             EQU     10h
 
 ; Default values for Port and PortCtrl, shared with the configurator
@@ -146 +147 @@
 ;
 COUNT_OF_STANDARD_IDE_DEVICES           EQU 2   ; 16- and 32-bit controllers
-COUNT_OF_8BIT_IDE_DEVICES               EQU 7
+COUNT_OF_8BIT_IDE_DEVICES               EQU 8
 COUNT_OF_ALL_IDE_DEVICES                EQU (COUNT_OF_8BIT_IDE_DEVICES + COUNT_OF_STANDARD_IDE_DEVICES)
 ; Standard port mapped I/O
@@ -161 +162 @@
 ; Memory Mapped I/O
 DEVICE_8BIT_JRIDE_ISA                   EQU ((COUNT_OF_STANDARD_IDE_DEVICES+6)<<1)  ; JR-IDE/ISA (Memory Mapped I/O)
+DEVICE_8BIT_ADP50L                      EQU ((COUNT_OF_STANDARD_IDE_DEVICES+7)<<1)  ; SVC ADP50L (Memory Mapped I/O)
 ; Virtual devices
 DEVICE_SERIAL_PORT                      EQU (COUNT_OF_ALL_IDE_DEVICES<<1)